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520572000052 = 221317797454207
BaseRepresentation
bin1111001001101001000…
…00100101011100110100
31211202200120001121001101
413210310200211130310
532012112413000202
61035051504335444
752416154664026
oct7446440453464
91752616047041
10520572000052
11190856360635
1284a82614584
133a122199780
141b2a5484016
15d81bbda887
hex7934825734

520572000052 has 48 divisors (see below), whose sum is σ = 1051937832960. Its totient is φ = 223268378112.

The previous prime is 520572000049. The next prime is 520572000107. The reversal of 520572000052 is 250000275025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3657268 + ... + 3796939.

It is an arithmetic number, because the mean of its divisors is an integer number (21915371520).

Almost surely, 2520572000052 is an apocalyptic number.

520572000052 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

520572000052 is an abundant number, since it is smaller than the sum of its proper divisors (531365832908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520572000052 is a wasteful number, since it uses less digits than its factorization.

520572000052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7454320 (or 7454318 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

Adding to 520572000052 its reverse (250000275025), we get a palindrome (770572275077).

The spelling of 520572000052 in words is "five hundred twenty billion, five hundred seventy-two million, fifty-two", and thus it is an aban number.

Divisors: 1 2 4 13 17 26 34 52 68 79 158 221 316 442 884 1027 1343 2054 2686 4108 5372 17459 34918 69836 7454207 14908414 29816828 96904691 126721519 193809382 253443038 387618764 506886076 588882353 1177764706 1647379747 2355529412 3294759494 6589518988 7655470589 10011000001 15310941178 20022000002 30621882356 40044000004 130143000013 260286000026 520572000052